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Akka/Scala example source code file (ReceiveBuilder.java)
The ReceiveBuilder.java Akka example source code/** * Copyright (C) 2009-2014 Typesafe Inc. <http://www.typesafe.com> */ package akka.japi.pf; /** * Used for building a partial function for {@link akka.actor.Actor#receive() Actor.receive()}. * * There is both a match on type only, and a match on type and predicate. * * Inside an actor you can use it like this with Java 8 to define your receive method. * <p/> * Example: * <pre> * @Override * public Actor() { * receive(ReceiveBuilder. * match(Double.class, d -> { * sender().tell(d.isNaN() ? 0 : d, self()); * }). * match(Integer.class, i -> { * sender().tell(i * 10, self()); * }). * match(String.class, s -> s.startsWith("foo"), s -> { * sender().tell(s.toUpperCase(), self()); * }).build() * ); * } * </pre> * * This is an EXPERIMENTAL feature and is subject to change until it has received more real world testing. */ public class ReceiveBuilder { private ReceiveBuilder() { } /** * Return a new {@link UnitPFBuilder} with a case statement added. * * @param type a type to match the argument against * @param apply an action to apply to the argument if the type matches * @return a builder with the case statement added */ public static <P> UnitPFBuilder<Object> match(final Class<P> type, FI.UnitApply<P> apply) { return UnitMatch.match(type, apply); } /** * Return a new {@link UnitPFBuilder} with a case statement added. * * @param type a type to match the argument against * @param predicate a predicate that will be evaluated on the argument if the type matches * @param apply an action to apply to the argument if the type matches and the predicate returns true * @return a builder with the case statement added */ public static <P> UnitPFBuilder<Object> match(final Class<P> type, FI.TypedPredicate<P> predicate, FI.UnitApply<P> apply) { return UnitMatch.match(type, predicate, apply); } /** * Return a new {@link UnitPFBuilder} with a case statement added. * * @param object the object to compare equals with * @param apply an action to apply to the argument if the object compares equal * @return a builder with the case statement added */ public static <P> UnitPFBuilder<Object> matchEquals(P object, FI.UnitApply<P> apply) { return UnitMatch.matchEquals(object, apply); } /** * Return a new {@link UnitPFBuilder} with a case statement added. * * @param object the object to compare equals with * @param predicate a predicate that will be evaluated on the argument if the object compares equal * @param apply an action to apply to the argument if the object compares equal * @return a builder with the case statement added */ public static <P> UnitPFBuilder<Object> matchEquals(P object, FI.TypedPredicate<P> predicate, FI.UnitApply<P> apply) { return UnitMatch.matchEquals(object, predicate, apply); } /** * Return a new {@link UnitPFBuilder} with a case statement added. * * @param apply an action to apply to the argument * @return a builder with the case statement added */ public static UnitPFBuilder<Object> matchAny(FI.UnitApply<Object> apply) { return UnitMatch.matchAny(apply); } } Other Akka source code examplesHere is a short list of links related to this Akka ReceiveBuilder.java source code file: |
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